Cerebral cysts

This code represents a fluid-filled sac within the brain parenchyma that is not congenital or acquired in the perinatal period. These cysts can be asymptomatic or cause neurological symptoms depending on their size and location, such as headaches, seizures, or focal deficits.

Apply this code when documentation specifies a cerebral cyst without further classification as congenital or acquired periventricular in a newborn. This diagnosis is typically established through imaging studies like MRI or CT scans.

• Ensure the documentation clearly distinguishes the cyst from congenital cerebral cysts or acquired periventricular cysts in newborns, as these have separate codes.
• Do not use this code for arachnoid cysts, which are typically coded under Q04.6.
• Always review imaging reports and physician notes for specific details regarding the cyst's origin and characteristics.